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authorDan Williams <dan.j.williams@intel.com>2020-07-21 00:08:24 +0200
committerVishal Verma <vishal.l.verma@intel.com>2020-07-29 03:29:22 +0200
commita1facc1fffc17a65e2c12a8de7434b9325ec0324 (patch)
tree1b12e0e5e163bb3a4f8adcb0344c9f5a36801a1e /drivers/bus
parentPM, libnvdimm: Add runtime firmware activation support (diff)
downloadlinux-a1facc1fffc17a65e2c12a8de7434b9325ec0324.tar.xz
linux-a1facc1fffc17a65e2c12a8de7434b9325ec0324.zip
ACPI: NFIT: Add runtime firmware activate support
Plumb the platform specific backend for the generic libnvdimm firmware activate interface. Register dimm level operations to arm/disarm activation, and register bus level operations to report the dynamic platform-quiesce time relative to the number of dimms armed for firmware activation. A new nfit-specific bus attribute "firmware_activate_noidle" is added to allow the activation to switch between platform enforced, and OS opportunistic device quiesce. In other words, let the hibernate cycle handle in-flight device-dma rather than the platform attempting to increase PCI-E timeouts and the like. Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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